HP E1340A User's Manual
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SYSTem
The SYSTem subsystem returns error messages and the SCPI version
number to which the HP E1340A complies.
Subsystem Syntax SYSTem
:ERRor? [query only]
:VERSion? [query only]
:ERRor? SYSTem:ERROR? returns the error messages in the error queue. See
Table B-4 in Appendix B for a listing of possible error numbers and
messages.
Comments • The HP E1340A places any generated errors into the error queue.
The queue is first-in, first out. With several errors waiting in the
queue, the
SYSTem:ERRor? returns the oldest unread error message
first.
• The error queue can hold 30 error messages. If the HP E1340A
generates more than 30 messages that are not read, it replaces the last
error message in the queue with error -350,"Too many errors". No
additional messages are placed into the queue until
SYSTem:ERRor?
reads some messages or the *CLS (clear status) command clears the
queue.
• When the error queue is empty, SYSTem:ERRor? returns +0,"No
error".
• Executable when initiated: Yes
• *RST Condition: unaffected
• Power-On Condition: no errors are in the error queue
Example Reading the error queue
SYST:ERR? Query the error queue
:VERSion? SYSTem:VERSion? returns the SCPI version number to which the HP
E1340A complies: “1991.0”.
Comment • Executable when initiated: Yes
• *RST Condition: none
Example Querying the SCPI revision
SYST:VERS? Query SCPI revision
SYSTem:ERRor?
Chapter 7 HP E1340A Command Reference 185